1,899 Works

Surrogate regression models for computation of time series suspended-sediment concentrations at Muddy Creek above Paonia Reservoir, Anthracite Creek above mouth near Somerset, and North Fork Gunnison below Raven Gulch near Somerset, Colorado

Rodney J Richards & Natalie K Day
This model archive summary documents the surrogate regression model used to compute suspended-sediment concentrations at Muddy Creek above Paonia Reservoir, CO, USGS site number 385903107210800. The methods used follow U.S. Geological Survey (USGS) guidance as referenced in relevant Office of Surface Water Technical Memorandum (TM) 2016.07 and Office of Water Quality TM 2016.10, and USGS Techniques and Methods, book 3, chap. C5 (Landers and others, 2016).

Data and code for Methods for inference: Moving beyond p-values

Richard A Erickson

SEAWAT model used to evaluate the potential effects of alterations to the hydrologic system on the distribution of salinity in the Biscayne aquifer in Broward County, Florida.

Joseph D. Hughes, Dorothy F. Sifuentes & Jeremy T. White
A three-dimensional, variable-density solute-transport model (SEAWAT) was developed to examine causes of saltwater intrusion and predict the effects of future alterations to the hydrologic system on salinity distribution in eastern Broward County, Florida. The model was calibrated to conditions from 1970 to 2012, the period for which data are most complete and reliable, and was used to simulate historical conditions from 1950 to 2012. The model was used to (1) evaluate the sensitivity of the...

Monarch threats code

Wayne E Thogmartin
Monarch treats code

MODFLOW2005 model used to simulate the effects of groundwater withdrawals from aquifers in Ocean County and vicinity, New Jersey

Stephen J Cauller, Lois M Voronin & Mary M Chepiga
A three-dimensional groundwater flow model was developed to simulate the effects of withdrawals on the groundwater-flow systems of five aquifers in and around Ocean County, New Jersey-the unconfined Kirkwood-Cohansey aquifer system and Vincentown aquifer, and three confined aquifers--the Rio Grande water-bearing zone, the Atlantic City 800-foot sand, and the Piney Point aquifer. A transient model was used to simulate conditions that represent no groundwater withdrawals, 2000-2003 groundwater withdrawals, and maximum-allocation groundwater withdrawals. Particle-tracking analysis, using...

Stochastic Empirical Loading and Dilution Model (SELDM) Software Support Web Page

Gregory E Granato
The Stochastic Empirical Loading and Dilution Model (SELDM) is designed to transform complex scientific data into meaningful information about the risk of adverse effects of runoff on receiving waters, the potential need for mitigation measures, and the potential effectiveness of such management measures for reducing these risks. The U.S. Geological Survey developed SELDM in cooperation with the Federal Highway Administration to help develop planning-level estimates of event mean concentrations, flows, and loads in stormwater from...

MODFLOW2000 model used to simulate the groundwater flow of the Denver Basin Aquifer System, Colorado

Edward R. Banta, Suzanne S. Paschke & David W. Litke
A three-dimensional groundwater flow model (MODFLOW2000) of the Denver Basin bedrock aquifer system and overlying alluvial aquifer was developed to provide quantitative estimates of groundwater flow conditions and provide a useful tool for managers to analyze temporal changes to the hydrologic system in response to changing climatic conditions and future groundwater development. In 2004, the U.S. Geological Survey (USGS) initiated large-scale regional studies to provide updated assessments of groundwater availability in important principal aquifers across...

Near-surface wind fields for San Francisco Bay--historical and 21st-century projected time series

Andrea O'Neill, Li H. Erikson & Patrick Barnard
To support Coastal Storm Modeling System (CoSMoS) in the San Francisco Bay (v2.1), time series of historical and 21st-century near-surface wind fields (eastward and northward wind arrays) were simulated throughout the Bay. While global climate models (GCMs) provide useful projections of near-surface wind vectors into the 21st century, resolution is not sufficient enough for use in regional wave modeling projects, such as CoSMoS. Short-duration high wind speeds, on the order of hours, are of key...

MODFLOW-2005 and MODPATH6 models used to delineate areas contributing groundwater to selected surface receiving waters for long-term average hydrologic stress conditions from 1968 to 1983, Long Island, New York

Paul E. Misut
A regional groundwater-flow model and particle-tracking program were used to delineate areas contributing groundwater to coastal and freshwater bodies and to estimate travel times from the water table to saline water bodies under average conditions from 1968 to 1983 on Long Island, New York. The coastal waters of Long Island are important economic and recreational resources for the region. The coastal water bodies receive freshwater from inflow of both surface water and groundwater, in addition...

Simulation of Groundwater Flow and Pumping Scenarios for 1900-2050 near Mount Pleasant, South Carolina

Jason M. Fine, Bruce G. Campbell & Matthew D. Petkewich
Increasing water use from the Upper Cretaceous Middendorf aquifer in South Carolina has created a large, regional cone of depression in the potentiometric surface of the Middendorf aquifer in Charleston and Berkeley Counties, South Carolina. Groundwater-level declines of up to 249 feet (ft) have been observed in wells over the past 125 years and are a result of groundwater use for public-water supply, irrigation, and private industry. To address the concerns of users of the...

SUTRA model used to evaluate the role of uplift and erosion in the persistence of saline groundwater in the shallow subsurface

Richard M. Yager, Clifford I Voss & Ward E. Sandford
A modified version of the three-dimensional, variable-density solute-transport model (SUTRA) was developed to simulate the effects of erosion and uplift on the flushing of brine with meteoric water in Permian through Mississippian rocks of the Appalachian Plateaus. The model was run in 10-Ma transient simulations for a range of values of permeability and anisotropy. Model results indicate that the depth of shallow Paleozoic brine in the Appalachian Plateaus is controlled by the flushing rate of...

MODFLOW-NWT 2016 groundwater flow model for Dane County, Wisconsin

Kenneth R. Bradbury Michael J. Parsen
A new groundwater flow model was created for Dane County, Wisconsin, to replace an earlier model developed in the 1990s by the Wisconsin Geological and Natural History Survey (WGNHS) and the U.S. Geological Survey (USGS). This modeling study was conducted cooperatively by the WGNHS, the Capital Area Regional Planning Commission, and the USGS. Although the overall conceptual model of the groundwater system remains largely unchanged, the incorporation of newly acquired, high-quality datasets, recent research findings,...

GRTS for Integrated Monarch Monitoring Program Code

Emily L Weiser & Wayne E Thogmartin
These scripts prepare input files and run a Generalized Random Tessellation Stratified (GRTS) draw to select sampling locations for the Integrated Monarch Monitoring Program in the U.S., Canada, and Mexico.

Arctic Tern (Sterna paradisaea) bARTEx_CONUS_2001v1 Habitat Map

Julie S Prior-Magee & Alexa McKerrow
This dataset represents a species habitat distribution model for Arctic Tern. These habitat maps are created by applying a <a href="https://www.sciencebase.gov/catalog/item/527d0a83e4b0850ea0518326">deductive habitat model</a> to remotely-sensed data layers within a species' range.

Kaibab Squirrel (Sciurus aberti kaibabensis) mABSQk_CONUS_2001v1 Habitat Map

Julie S Prior-Magee & Alexa McKerrow
This dataset represents a species habitat distribution model for Kaibab Squirrel. These habitat maps are created by applying a <a href="https://www.sciencebase.gov/catalog/item/527d0a83e4b0850ea0518326">deductive habitat model</a> to remotely-sensed data layers within a species' range.

Cheoah Bald Salamander (Plethodon cheoah) aCHSAx_CONUS_2001v1 Habitat Map

Julie S Prior-Magee & Alexa McKerrow
This dataset represents a species habitat distribution model for Cheoah Bald Salamander. These habitat maps are created by applying a <a href="https://www.sciencebase.gov/catalog/item/527d0a83e4b0850ea0518326">deductive habitat model</a> to remotely-sensed data layers within a species' range.

Red-spotted Toad (Anaxyrus punctatus) aRSTOx_CONUS_2001v1 Habitat Map

Julie S Prior-Magee & Alexa McKerrow
This dataset represents a species habitat distribution model for Red-spotted Toad. These habitat maps are created by applying a <a href="https://www.sciencebase.gov/catalog/item/527d0a83e4b0850ea0518326">deductive habitat model</a> to remotely-sensed data layers within a species' range.

Red-eyed Vireo (Vireo olivaceus) bREVIx_CONUS_2001v1 Habitat Map

Julie S Prior-Magee & Alexa McKerrow
This dataset represents a species habitat distribution model for Red-eyed Vireo. These habitat maps are created by applying a <a href="https://www.sciencebase.gov/catalog/item/527d0a83e4b0850ea0518326">deductive habitat model</a> to remotely-sensed data layers within a species' range.

Green-tailed Towhee (Pipilo chlorurus) bGTTOx_CONUS_2001v1 Habitat Map

Julie S Prior-Magee & Alexa McKerrow
This dataset represents a species habitat distribution model for Green-tailed Towhee. These habitat maps are created by applying a <a href="https://www.sciencebase.gov/catalog/item/527d0a83e4b0850ea0518326">deductive habitat model</a> to remotely-sensed data layers within a species' range.

Ocmulgee Slimy Salamander (Plethodon ocmulgee) aOCSSx_CONUS_2001v1 Habitat Map

Julie S Prior-Magee & Alexa McKerrow
This dataset represents a species habitat distribution model for Ocmulgee Slimy Salamander. These habitat maps are created by applying a <a href="https://www.sciencebase.gov/catalog/item/527d0a83e4b0850ea0518326">deductive habitat model</a> to remotely-sensed data layers within a species' range.

Brown Noddy (Anous stolidus) bBRNOx_CONUS_2001v1 Habitat Map

Julie S Prior-Magee & Alexa McKerrow
This dataset represents a species habitat distribution model for Brown Noddy. These habitat maps are created by applying a <a href="https://www.sciencebase.gov/catalog/item/527d0a83e4b0850ea0518326">deductive habitat model</a> to remotely-sensed data layers within a species' range.

Allegheny Mountain Dusky Salamander (Desmognathus ochrophaeus) aAMDSx_CONUS_2001v1 Habitat Map

Julie S Prior-Magee & Alexa McKerrow
This dataset represents a species habitat distribution model for Allegheny Mountain Dusky Salamander. These habitat maps are created by applying a <a href="https://www.sciencebase.gov/catalog/item/527d0a83e4b0850ea0518326">deductive habitat model</a> to remotely-sensed data layers within a species' range.

Oak Titmouse (Baeolophus inornatus) bOATIx_CONUS_2001v1 Habitat Map

Julie S Prior-Magee & Alexa McKerrow
This dataset represents a species habitat distribution model for Oak Titmouse. These habitat maps are created by applying a <a href="https://www.sciencebase.gov/catalog/item/527d0a83e4b0850ea0518326">deductive habitat model</a> to remotely-sensed data layers within a species' range.

Blackburnian Warbler (Dendroica fusca) bBLBWx_CONUS_2001v1 Habitat Map

Julie S Prior-Magee & Alexa McKerrow
This dataset represents a species habitat distribution model for Blackburnian Warbler. These habitat maps are created by applying a <a href="https://www.sciencebase.gov/catalog/item/527d0a83e4b0850ea0518326">deductive habitat model</a> to remotely-sensed data layers within a species' range.

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